CN108006332A - A kind of corrosion-resistant thermal insulation composite square-tube - Google Patents
A kind of corrosion-resistant thermal insulation composite square-tube Download PDFInfo
- Publication number
- CN108006332A CN108006332A CN201711459844.2A CN201711459844A CN108006332A CN 108006332 A CN108006332 A CN 108006332A CN 201711459844 A CN201711459844 A CN 201711459844A CN 108006332 A CN108006332 A CN 108006332A
- Authority
- CN
- China
- Prior art keywords
- square
- tube
- steel tube
- corrosion
- square steel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L57/00—Protection of pipes or objects of similar shape against external or internal damage or wear
- F16L57/06—Protection of pipes or objects of similar shape against external or internal damage or wear against wear
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L58/00—Protection of pipes or pipe fittings against corrosion or incrustation
- F16L58/02—Protection of pipes or pipe fittings against corrosion or incrustation by means of internal or external coatings
- F16L58/04—Coatings characterised by the materials used
- F16L58/08—Coatings characterised by the materials used by metal
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L58/00—Protection of pipes or pipe fittings against corrosion or incrustation
- F16L58/02—Protection of pipes or pipe fittings against corrosion or incrustation by means of internal or external coatings
- F16L58/04—Coatings characterised by the materials used
- F16L58/10—Coatings characterised by the materials used by rubber or plastics
- F16L58/1009—Coatings characterised by the materials used by rubber or plastics the coating being placed inside the pipe
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L59/00—Thermal insulation in general
- F16L59/02—Shape or form of insulating materials, with or without coverings integral with the insulating materials
- F16L59/028—Composition or method of fixing a thermally insulating material
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L59/00—Thermal insulation in general
- F16L59/04—Arrangements using dry fillers, e.g. using slag wool which is added to the object to be insulated by pouring, spreading, spraying or the like
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L59/00—Thermal insulation in general
- F16L59/10—Bandages or covers for the protection of the insulation, e.g. against the influence of the environment or against mechanical damage
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L59/00—Thermal insulation in general
- F16L59/12—Arrangements for supporting insulation from the wall or body insulated, e.g. by means of spacers between pipe and heat-insulating material; Arrangements specially adapted for supporting insulated bodies
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L9/00—Rigid pipes
- F16L9/14—Compound tubes, i.e. made of materials not wholly covered by any one of the preceding groups
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Thermal Insulation (AREA)
Abstract
The invention discloses a kind of corrosion-resistant thermal insulation composite square-tube, including square steel tube, anti-corrosion leak-proof pipe is built-in with square steel tube, the first insulating layer is filled between anti-corrosion leak-proof pipe and square steel tube, is connected as one between the internal face of anti-corrosion leak-proof pipe, the first insulating layer and square steel tube by support link；The second insulating layer is coated with the outside wall surface of square steel tube, being equidistantly bundled on the second insulating layer has ribs, and protection outer layer covers are compounded in the outside of the second insulating layer and ribs；The both ends of the square steel tube carry connecting flange；Sealed between the anti-corrosion leak-proof pipe and square steel tube of square tube end using fluid sealant.The present invention has the function of the multiple tube of anti-corrosion leak-proof by built-in inside square steel tube, prevents petroleum liquid from directly being contacted with square steel tube internal face, so as to effectively improve the anti-corrosive properties of square steel tube itself；By the setting of insulating layer, the heat preservation and insulation of composite square-tube entirety is effectively improved, prevents influence of the ambient temperature change to petroleum transportation generation in pipe.
Description
Technical field
The present invention relates to petroleum transportation field, more particularly to a kind of corrosion-resistant thermal insulation composite square-tube.
Background technology
Square tube is a kind of section light thin wall steel pipe of square hollow, also referred to as steel cold-forming shapes, it be with hot rolling or
Cold-strip steel or roll bending are type of the mother metal after cold bend(ing) machine-shaping again through square cross-sectional shape size made of high-frequency welding
Steel, for hot rolling spy's heavy wall square tube except wall thickness thickens outer situation, its corner size and edge glacing flatness meet or exceed electric resistance welding
The level of cold forming square tube, square tube comprehensive mechanical property is good, and weldability is cold, and hot-working character and corrosion resistance are good, have
Good low-temperature flexibility.
Petrochemical industry, often using various square tubes, at present, there is following lack in the square tube that petrochemical industry uses
Point：1. impermeable antiseptic property is poor, service life is short；2. do not possess heat-insulating property or poor thermal insulation property, petroleum transportation situation by
Weather influences big.
The content of the invention
The invention mainly solves the technical problem of providing a kind of corrosion-resistant thermal insulation composite square-tube, can solve existing oil fortune
The defeated above problem existing for square tube.
In order to solve the above technical problems, one aspect of the present invention is：A kind of corrosion-resistant thermal insulation composite square is provided
Pipe, including square steel tube, is built-in with anti-corrosion leak-proof pipe in the square steel tube, is filled between the anti-corrosion leak-proof pipe and the square steel tube
There is the first insulating layer, connected between the internal face of the anti-corrosion leak-proof pipe, the first insulating layer and the square steel tube by support link
It is connected in one；Be coated with the second insulating layer in the outside wall surface of the square steel tube, on second insulating layer equidistantly bundle have plus
Strong rib, the protection outer layer covers are compounded in the outside of second insulating layer and ribs；The square steel tube and the anti-corrosion
The cross section of antiseepage pipe is square structure；The both ends of the square steel tube carry connecting flange；Positioned at described in the square tube end
Sealed between anti-corrosion leak-proof pipe and square steel tube using fluid sealant.
In a preferred embodiment of the present invention, the anti-corrosion leak-proof pipe is that aluminium foil, polyethylene and polytetrafluoroethylene (PTFE) are compound
Pipe；Wherein, the polyethylene layer is conformed to inside and outside the aluminium foil, towards the polyethylene of the square tube interior side
The polytetrafluorethylecoatings coatings are coated on layer.
In a preferred embodiment of the present invention, first insulating layer is glue powder polyphenyl particle layer；Second insulation
Layer is foam polyurethane layer.
In a preferred embodiment of the present invention, the thickness of first insulating layer is the 1/ of second insulation layer thickness
3~1/2.
In a preferred embodiment of the present invention, the protection outer layer is wearing layer, its thickness is 12~15mm.
In a preferred embodiment of the present invention, the wearing layer is abrasive rubber layer.
The beneficial effects of the invention are as follows：A kind of corrosion-resistant thermal insulation composite square-tube of the present invention, passes through the built-in tool inside square steel tube
There is the multiple tube of anti-corrosion leak-proof function, prevent petroleum liquid from directly being contacted with square steel tube internal face, so as to effectively improve square steel tube
The anti-corrosive properties of itself, improve the service life of composite square-tube；By respectively setting one layer of heat preservation layer on square steel tube inside and outside wall, effectively carry
The heat preservation and insulation of high composite square-tube entirety, the influence for preventing ambient temperature change from being produced to petroleum transportation in pipe.
Brief description of the drawings
Fig. 1 is a kind of cross-sectional view of one preferred embodiment of corrosion-resistant thermal insulation composite square-tube of the present invention；
Fig. 2 is the structure diagram of shown anti-corrosion leak-proof pipe；
The mark of each component is as follows in attached drawing：1. square steel tube, 2. anti-corrosion leak-proof pipes, 3. first insulating layers, 4. support links, 5.
Two insulating layers, 6. ribs, 7. protection outer layers, 8. connecting flanges, 21. aluminium foils, 22. polyethylene layers, 23. polytetrafluoroethylene (PTFE).
Embodiment
Presently preferred embodiments of the present invention is described in detail below in conjunction with the accompanying drawings, so that advantages and features of the invention energy
It is easier to be readily appreciated by one skilled in the art, so as to make a clearer definition of the protection scope of the present invention.
Please refer to Fig.1 and Fig. 2, the embodiment of the present invention include：
Embodiment 1
A kind of corrosion-resistant thermal insulation composite square-tube, including square steel tube 1, are built-in with anti-corrosion leak-proof pipe 2, the anti-corrosion in the square steel tube 1
The first insulating layer 3, the anti-corrosion leak-proof pipe 2, the first insulating layer 3 and the side are filled between antiseepage pipe 2 and the square steel tube 1
It is connected as one between the internal face of steel pipe 1 by support link 4；The second insulation is coated with the outside wall surface of the square steel tube 1
Layer 5, equidistantly bundle has ribs 6 on second insulating layer 5, and protection outer layer 7 parcel is compounded in second insulation
The outside of layer 5 and ribs 6；The cross section of the square steel tube 1 and the anti-corrosion leak-proof pipe 2 is square structure；The square steel tube 1
Both ends carry connecting flange 8；Fluid sealant 9 is used between the anti-corrosion leak-proof pipe 2 and square steel tube 1 of the square tube end
Sealing.
Specifically, the square steel tube is steel cold-forming shapes pipe, and section is square structure, and wall thickness is 0.5~3cm.
The anti-corrosion leak-proof pipe 2 is the multiple tube of aluminium foil 21, polyethylene layer 22 and polytetrafluoroethylene (PTFE) 23；Wherein, the aluminium
The polyethylene layer 22 is conformed to inside and outside paper tinsel 21, towards the polyethylene layer 22 of the square tube interior side on coat
23 coating of polytetrafluoroethylene (PTFE).The cross section of the anti-corrosion leak-proof pipe is also square structure.This seemingly antiseepage pipe have prevent stone
The effect of oil infiltration, on the one hand can effectively obstruct contact corrosion effect of the oil to square steel tube 1, on the other hand, its own
With excellent corrosion resistance, the service life of composite square-tube is improved.The internal diameter of the anti-corrosion leak-proof pipe 2 is the square steel tube
The 1/6~1/4 of internal diameter.
First insulating layer 3 is glue powder polyphenyl particle layer, is bonded by glue powder polyphenyl particle and acrylic acid adhesive.
First insulating layer 3 is tightly packed and the gap that is fitted between the anti-corrosion leak-proof pipe 2 and square steel tube 1 in, and pass through support
Itself and anti-corrosion leak-proof pipe 2 and square steel tube 1 are fixed as one by connecting rod 4, wherein, support link 4 is built in first insulating layer
It is interior.
Second insulating layer 5 is foam polyurethane layer, is coated on the outer surface of the square steel tube 1, and set by interval
The bundle of reinforcing rib 6 put is fixed.The thickness of second insulating layer 5 is 2~3 times of 3 thickness of the first insulating layer.Kept the temperature by upper strata
The design of layer, can effectively improve the heat insulation effect of composite square-tube, barrier ambient temperature change is to square tube interior space temperature
Influence, thus improve oil, natural gas transmission performance stability.
The protection outer layer 7 be wearing layer, and specially abrasive rubber layer, its thickness are 12~15mm, and tight is the
The outer surface of two insulating layers 5 and reinforcing rib 6, it is possible to increase the wear-resisting property of composite square-tube, is especially improved on the outside of composite square-tube
The second insulating layer wear-resisting property, ensure the heat preservation property of composite square-tube is stable, persistently, that improves composite square-tube uses the longevity
Life.
At the both ends of each section composite square-tube, square steel tube 1 and anti-corrosion leak-proof pipe 2 are sealed with fluid sealant, it is compound to ensure
The structure of square tube and the stability of performance.In addition, for the composite square-tube used as long distance transmission passage, it usually needs will
More piece composite square-tube connects, in order to improve the convenience of connection, in the both ends outer wall of the square steel tube of each section composite square-tube
Connecting flange is welded with face, to improve the convenience of connection.
The corrosion-resistant thermal insulation composite square-tube of the present invention, has the function of the compound of anti-corrosion leak-proof by built-in inside square steel tube
Pipe, prevents petroleum liquid from directly being contacted with square steel tube internal face, so as to effectively improve the anti-corrosive properties of square steel tube itself, improves compound
The service life of square tube；By respectively setting one layer of heat preservation layer on square steel tube inside and outside wall, the heat-insulated of composite square-tube entirety is effectively improved
Heat-insulating property, the influence for preventing ambient temperature change from being produced to petroleum transportation in pipe.
In addition, the composite square-tube of the present invention may also be used for transmitting other liquid or gas, including corrosive or non-corruption
Corrosion.
In the description of the present invention, it is necessary to which explanation, term " on ", " under ", "left", "right", " interior ", " outer " etc. indicate
Orientation or position relationship be based on orientation shown in the drawings or position relationship, or the invention product using when usually put
Orientation or position relationship, be for only for ease of the description present invention and simplify description, rather than instruction or imply signified device
Or element there must be specific orientation, with specific azimuth configuration and operation, therefore it is not considered as limiting the invention.
The foregoing is merely the embodiment of the present invention, is not intended to limit the scope of the invention, every to utilize description of the invention
And the equivalent structure or equivalent flow shift that accompanying drawing content is made, other related technical areas are directly or indirectly used in,
It is included within the scope of the present invention.
Claims (6)
1. a kind of corrosion-resistant thermal insulation composite square-tube, it is characterised in that including square steel tube, anti-corrosion leak-proof is built-in with the square steel tube
Pipe, is filled with the first insulating layer between the anti-corrosion leak-proof pipe and the square steel tube, the anti-corrosion leak-proof pipe, the first insulating layer and
It is connected as one between the internal face of the square steel tube by support link；The second guarantor is coated with the outside wall surface of the square steel tube
Warm layer, equidistantly bundle has ribs on second insulating layer, and the protection outer layer covers are compounded in second insulating layer
And the outside of ribs；The cross section of the square steel tube and the anti-corrosion leak-proof pipe is square structure；The both ends of the square steel tube
With connecting flange；Sealed between the anti-corrosion leak-proof pipe and square steel tube of the square tube end using fluid sealant.
2. corrosion-resistant thermal insulation composite square-tube according to claim 1, it is characterised in that the anti-corrosion leak-proof pipe is aluminium foil, gathers
Ethene and polyfluortetraethylecomposite composite pipe；Wherein, the polyethylene layer is conformed to inside and outside the aluminium foil, towards the square tube
The polytetrafluorethylecoatings coatings are coated on the polyethylene layer of interior side.
3. corrosion-resistant thermal insulation composite square-tube according to claim 1, it is characterised in that first insulating layer is adhesive polystyrene
Stratum granulosum；Second insulating layer is foam polyurethane layer.
4. the corrosion-resistant thermal insulation composite square-tube according to claim 1 or 3, it is characterised in that the thickness of first insulating layer
For the 1/3~1/2 of second insulation layer thickness.
5. corrosion-resistant thermal insulation composite square-tube according to claim 1, it is characterised in that the protection outer layer is wearing layer, its
Thickness is 12~15mm.
6. corrosion-resistant thermal insulation composite square-tube according to claim 5, it is characterised in that the wearing layer is abrasive rubber layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711459844.2A CN108006332A (en) | 2017-12-28 | 2017-12-28 | A kind of corrosion-resistant thermal insulation composite square-tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711459844.2A CN108006332A (en) | 2017-12-28 | 2017-12-28 | A kind of corrosion-resistant thermal insulation composite square-tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108006332A true CN108006332A (en) | 2018-05-08 |
Family
ID=62062052
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711459844.2A Withdrawn CN108006332A (en) | 2017-12-28 | 2017-12-28 | A kind of corrosion-resistant thermal insulation composite square-tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108006332A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112212128A (en) * | 2020-10-15 | 2021-01-12 | 江西城桥复合材料有限公司 | Composite material with good heat insulation effect and preparation method thereof |
-
2017
- 2017-12-28 CN CN201711459844.2A patent/CN108006332A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112212128A (en) * | 2020-10-15 | 2021-01-12 | 江西城桥复合材料有限公司 | Composite material with good heat insulation effect and preparation method thereof |
| CN112212128B (en) * | 2020-10-15 | 2022-03-04 | 江西城桥复合材料有限公司 | Composite material with good heat insulation effect and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201651577U (en) | Enhancement type flexible thermal-insulation composite tube | |
| CN203549153U (en) | High-temperature-resistance heat insulation pipe | |
| CN206487952U (en) | A kind of cryogenic delivery pipe road | |
| CN201934814U (en) | Long-distance low-temperature transfer pipeline | |
| CN106090459A (en) | A kind of prefabricated direct-buried steam insulation steel pipe | |
| CN108006332A (en) | A kind of corrosion-resistant thermal insulation composite square-tube | |
| CN204328250U (en) | A kind of compound thermal insulation pipe | |
| CN207921503U (en) | A kind of corrosion-resistant thermal insulation composite square-tube | |
| CN204328251U (en) | The standoff compound thermal insulation pipe of a kind of band | |
| CN204785269U (en) | Vacuum insulation bellows | |
| CN2916307Y (en) | Thermal-insulating aluminium-sandwiched polyethylene composite pressure pipe | |
| CN204328236U (en) | The standoff new type compound Glass Steel Tube of a kind of band | |
| CN210600695U (en) | Anti-corrosion direct-buried heat-insulation pipe | |
| CN211239178U (en) | Novel high-performance alloy steel seamless steel tube | |
| CN208024965U (en) | Anti-drag heat insulation pipe in a kind of high density polyvinyl polyurethane | |
| CN209385827U (en) | A kind of titanium nanometer anticorrosive oil pipe | |
| CN209819010U (en) | Anticorrosive type expansion joint device | |
| CN220337851U (en) | Antioxidant plastic-coated composite steel pipe | |
| CN205244645U (en) | Prefabricated direct -burried steam insulating tube | |
| CN217634315U (en) | High-performance corrosion-resistant plastic-coated composite steel pipe | |
| CN210424184U (en) | Multilayer heat preservation steel pipe | |
| CN203454478U (en) | Finned evaporator | |
| CN210600688U (en) | PIR composite telescopic cold insulation pipe shell | |
| CN215862364U (en) | Double-layer heat-preservation underwater equipment pipeline | |
| CN204328258U (en) | A kind of NEW TYPE OF COMPOSITE shape steel tube |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180508 |